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Unmanned aerial vehicle dynamic deployment method under space boundary constraint

A space boundary, UAV technology, applied in wireless communication, radio transmission system, network planning and other directions, can solve the problems of discontinuity, transmission instability, unreliability, etc., to improve communication quality and network performance Effect

Active Publication Date: 2020-11-20
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0005] In addition, the high dynamics of UAV base stations make the network more flexible and adjustable, but on the other hand, it also increases the instability, discontinuity and unreliability of transmission

Method used

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  • Unmanned aerial vehicle dynamic deployment method under space boundary constraint
  • Unmanned aerial vehicle dynamic deployment method under space boundary constraint
  • Unmanned aerial vehicle dynamic deployment method under space boundary constraint

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Embodiment Construction

[0037] The present invention considers the boundary constraints of the coverage area, and proposes a three-dimensional dynamic deployment method for UAV base stations. The UAV network model is shown in the attached figure 1 As shown, considering the constraints of building distribution on the deployment location of UAVs, UAVs are deployed in a cylindrical area, the height of the lower plane of the cylinder corresponds to the average height of the building, and the bottom of the cylinder is a circular area covering the target area; The man-machine base station moves in a three-dimensional random walk model in the cylindrical area to achieve dynamic coverage of the target area. Since the mobility of UAVs leads to time-varying transmission distances and transmission links, a period of throughput is introduced to obtain the communication quality of UAV networks by measuring the large-scale time performance at the user, and according to the throughput over a period of time The vari...

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Abstract

The invention provides an unmanned aerial vehicle dynamic deployment method under space boundary constraint, and the method comprises the steps: deploying an unmanned aerial vehicle base station to carry out the quick coverage of a blind spot and a hot spot region, wherein the coverage region is called a target region; determining the initial deployment of an unmanned aerial vehicle according to the parameters of the target region; in the initial state, distributing the unmanned aerial vehicle randomly in a cylindrical area, and then updating the position dynamically according to a random walkmodel to meet the dynamic flow demand of the target region; and establishing a large-scale time statistical performance index model, calculating throughput of a user for a period of time based on steady-state distribution of the unmanned aerial vehicles, and determining the optimal number and optimal deployment space of the unmanned aerial vehicles according to the change relationship of the throughput of the period of time along with the number and deployment height of the unmanned aerial vehicles under the environmental parameters of different target regions.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, especially in the fifth generation mobile communication (5th Generation, 5G), a method for dynamically deploying UAVs under space boundary constraints in a UAV (Unmanned aerial vehicle, referred to as UAV) base station network. Background technique [0002] Due to the high dynamic characteristics of drones, they can be deployed on demand. In the field of wireless communication, drone base stations have been regarded as an important solution for temporary coverage scenarios. With the continuous improvement of UAV technology, UAV base stations play an increasingly important role in military, public and civilian applications. Drones can be leveraged in various ways to enhance cellular communications, for example, dedicated drones can be used as onboard wireless access points or relay nodes to further improve ground communications for greater service coverage and Flexible spac...

Claims

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Application Information

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IPC IPC(8): H04W16/18H04W16/24H04W16/26H04B7/185
CPCH04W16/18H04W16/24H04W16/26H04B7/18504
Inventor 张鸿涛杨丽云刘江徽武丹阳
Owner BEIJING UNIV OF POSTS & TELECOMM
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